Gas vacuum vaporizer



E. A. CRAWFORD GAS VACUUM VAPORIZER 1923 2 Sheets-Sheet 1 Filed Jan.

E. A. CRAWFORD GAS VACUUM VAPORIZER Nov. 20, 1923.

2 Sheets-Sheet 2 Filed Jan. 11 1925 Patented Nov. 20 11923.

earner orator.

GAS VACUUM VAPORIZER.

Application filed January 11, 1923.

To all whom it may concern:

Be it known that I, ELLSWORTH A. CRAW- FORD, a citizen of the United States, residing at Harrisburg, in the county of Poinsett and State of Arkansas, have invented certain new and useful Improvements in Gas'Vacuun Vaporizers, of which the following is a specification.

This invention relates to, new and useful improvements in internal combustion engines, and has for its principal object to provide means adapted to be connected to the breather pipe extending upwardl from the crank case and the intake mani old of the well known type .Ford automobile for the purpose of permitting the suction created in the intake manifold to suck the unburnt gases and a suflicient quantity of air from the crank case and the breather pipe into the intake manifold and then into the cylinders of the engine where the same mixes with the incoming gases, thus reducing the consumption of fuel to a minimum.

Another important object of the inven- 25 tion is to provide a gas vacuum vaporizer of the above mentioned character, which can be easil operated by the person driving the car wit out the necessity of having to leave the seat in order to open and close the valve so as to permit the suction of the engine to draw into the intake manifold the unburnt gases and air from the breather pipe.

Another important object of the invention is to provide a as vacuum vaporizer of the above mentione character, which is simple in construction, inexpensive, strong, durable and further well adapted for the purpose for which it is designated.

A still further object of the invention is to provide a gas vacuum vaporizer of the above mentioned character, which is also provided with an air deflecting shield mounted forwardly of the intake manifold for the purpose of preventing the cool air directed rearwardly of the engine by the cooling fan from coming in contact with the intake manifold and furthermore causing the fuel supplied through the intake manifold from being chilled by the blast of air.

Other objects and advantages of tlllS 1nvention will become apparent dur1ng the course of the following description.

In the accompanying drawings forming a part of this specification and in which like Serial No. 612,063.

numerals designate like parts throughout the same Figure l is a side elevation of an internal combustion engine showing my gas vacuum vaporizer in position thereon.

Figure 2 is a central vertical section of the breather pipe showing the air deflecting member in position in the upper end thereof.

Figure 3 is a detail perspective of the air deflecting shield.

Figure 4 is a modification of another form of air deflecting member which is associated with the upper end of the breather pipe.

Figure 5 is a top plan view of the valve operating means.

Figure dis a section on line 6-6 of 2-2.

F igure 7 is a top plan view of the breather pipe shown in Figure 4.

In the drawings wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates the intake manifold of the Well known type'of Ford automobiles, and associated therewith is the breather pipe 3 which extends upwardly from the crank case 4: in the usual manner. The intake manifold is provided with a threaded opening 5 therein adjacent the forked end thereof and adapted to be received therein is the threaded elbow 6 of the pipe 7. The breather pipe 3 is also provided with an opening 8 therein adjacent the upper end and the opposite end of the pipe 7 is adapted to extend through the opening 8 in the breather pipe 3 and is threaded as shown at 9 in the drawings and adapted to receive a nut 10 which will securely hold the pipe 7 in proper position within the breather pipe 3 and furthermore prevent the pipe 7 from relatively longitu dinal movement of the pipe and will also tend to hold the pipe in proper position so as to operate more efficiently.

The pipe 7affords communication between the intake manifold 1 and the breather pipe 3 which extends upwardly from the crank case for the purpose hereinafter to be more fully described. The pipe 7 is furthermore provided with a controlling valve 11 of the rotary type which is so positioned in the pipe as to be adjacent the intake manifold 1 and connected to the rotary valve 11 is a suitable operating rod 12 which extendsback to a suitable point whereby the operator of lift the motor vehicle can easily have access to the same in order to operate the valve for the purpose of opening and closing the same whereby direct communication between the pipe Y and the intake manifold is obtained.

It is probable that this operating rod extends through the dash board of the automobile and thereby permit the operator of the motor vehicle to easily reach the same.

The breather pipe 3 is provided at its up per end with an air deflecting member 13 which is provided with oppositely extending arms 14: and 15 respectively for the purpose of permitting the same to be slidably received in the upper end of the breather pipe 3 and is furthermore adapted to deflect the air which is directed back wardly by the cooling fan of the automobile into the breather pipe 3 for the purpose to be more fully described. A suitable screen 16 is adapted to be supported within the breather ipe 3 for the purpose of preventing any oreign substance from entering the breather pipe and preventing the proper functioning and operation of the pipe 7 which communicates or connects the breather pipe with the intake manifold and this screen is so positioned in the breather pipe 3 so as not to interfere with the operation of the air deflector member 13.

In Figure 4; have shown a modification wherein the breather ipe 3 has its upper end internally threaded as shown at 17 and a similar air deflecting member 18 similar to the air deflector as shown at 13 is provided at its lower end with a threaded ring 19 for the purpose of permitting the same to be detachahly held in proper position within the upper end of the threaded end of the breather pipe" and is for the same purpose as the breather pipe 13 heretofore described.

To further prevent the air which is directed rearwardly from the cooling fan of the automobile engine from coming in contact with the intake manifold l, 1 provide a suitable shield 20 which is supported at its upper end by suitable clamps E21 upon the exhaust manifold 22 and the shield 20 is adapted to be positioned forwardly of the intake manifold so as to prevent any air in the cooling fan from coming in contact with the same and Will further cause the air coming from the exhaust manifold 22 to be deflected upon the intake manifold to further heat the incoming gases and air for the purpose of providing a richer mixture and assuring the proper functioning. of the engine and to further prevent the condensation of the vaporized fuel upon entering the intake manifold from the carburetor.

In operation of the device, the pistons operating in the cylinders of the engine create a suction through the intake manifold 1, the unburnt gases which are collected iii the crank case 4 will be caused to be drawn through the breather pipe 3 and into the pipe 7 and the same mixes with the incoming gas passing through the intake manifold and the air deflecting member 13 will also cause a sufficient quantity of air from the cooling fan to be directed into the breather pipe and communicate with the unburnt gases comin through the pipe 7 and thereby result in tie mixing of the unburnt gases with a sufficient quantity of air and the incoming gases of the carburetor to be thoroughly mixed and preheated and thereby reduce the quantity of fluid consumption to a minimum.

When it is desired to cut off the supply of air and unburnt gases from the breather pipe from entering the intake manifold 1, the valve is rotated to cause the same to be out of communication with the pipe 7 and intake manifold 1 and thereby prevent the incoming gases from coming into the intake manifold.

It will thus be seen from the foregoing description that a gas vacuum vaporizer has been provided wherein the proper amount of gas and air is supplied to the intake manifold and the internal combustion engine and furthermore the lubricating oil is kept in a cooler condition and prevents the same from being cut up by the unburnt gases which come in contact with the same due to the leakage each time a compression of the gas is made by the pistons in the cylinders. The gas vacuum vaporizer further- 1nore tends to cause all of the unburnt gases to be driven from the crank case and brought into the intake manifold and thereby prevent any waste of gas and will tend to improve the running qualities of the engine and minimize the depositing of carbon and fouling of the spark plugs.

The simplicity of my gas vacuum vaporizer renders the same very easily to be placed in position upon the automobile engine and furthermore is efficient in its operatittin and can be obtained at a minimum cos From the fore oing description of the construction of m improved apparatus, it will be seen that have provided a simple, inexpensive and efficient means for carrying out of the objects of the invention, and while I have particularly described the elements best adapted to perform the functions set forth, 1t is obvious that various changes in form, proportion and in the minor details of construction. maybe resorted to, without departing from the spirit or sacrificing any of the principles of the invention.

hat I clalm as new and desire to secure by Letters Patent is 1. In combination with the intake manifold of an internal combustion engine and a breather pipe, of a pipe connected to the said intake manifold and the breather pipe, a valve in the said pipe, and means at the upper end of the said breather pipe for deflecting a quantity of air from the cooling fan into the said breather pipe.

2. In combination with an internal combustion engine including an intake manifold and a breather element extending upwardly from the crank case, of a pipe communicating the breather element with the said intake manifold, a valve in the said pipe adjacent the said intake manifold, an air deflecting member carried by the upper end of the said breather element. and an air shield disposed forwardly of the said intake manifold.

3. In combination with an internal combustion engine including an intake manifold and a breather element extending upwardly from the crank case. of a pipe communicatinp the breather element with the said intake manifold, a valve in the said pipe adjacent the said intake manifold, means for operating said valve, an air defleeting member detachably supported in the upper end of the said breather element, a screen in the said breather element.

4. In combination with an internal combustion engine including an intake manifold and a breather element extending upwardly from the crank case, of a pipe communicating the said breather element with the said intake manifold, a rotary valve in the said pipe adjacent the said intake manifold, an elongated rod associated with the said valve for operating the same from a distance, an air deflecting member detachably mounted in the upper end of the said breather element and extending upwardly therefrom, a screen disposed in the said breather element and an air shield disposed forwardly of the said intake manifold.

In testimony whereof I afiix my si nature.

ELLSWORTH A. CRAVVF RD. 

